Efficient Adsorption and Degradation of Tetracycline Hydrochloride Using Metal-Organic Framework-Derived Cobalt-Based Catalysts and Mechanism Insight.

High-performance Co-based catalysts were derived by pyrolysis using synthesized MOFs as self-sacrificial templates. Various catalytic systems were constructed by peroxymonosulfate (PMS) to degrade tetracycline hydrochloride (TC). Adsorption-degradation efficiencies, cycle performance, dynamics, and the adsorption catalytic mechanism of various catalytic systems for TC were studied.

Ozone degradation of tetracycline hydrochloride enhanced by magnetic nanofluid composed of FeO nanoparticles.

Magnetic FeO nanoparticles were added into the aqueous phase to form nanofluid systems, in which ozone was used for the oxidation of tetracycline hydrochloride (TC) in the solution. The nanomaterials were characterized using SEM, XRD, EDS, and FT-IR. The effects of nanoparticles size, addition ratio, and number of cycles on the process of ozone oxidation of TC were investigated.

Insight into the enhancement effect of amino functionalized carbon nanotubes on the HS removal performance of nanofluid system.

By constructing nanofluid system, trace functionalized nanoparticles can significantly enhance the absorption performance of basic liquid. In this work, amino functionalized carbon nanotubes (ACNTs) and carbon nanotubes (CNTs) were introduced into alkaline deep eutectic solvents to build nanofluid systems and used for the dynamic absorption of HS. The experiment results showed that the introduction of nanoparticles can significantly enhance the HS removal performance of original liquid.

Effects of forest age on soil erosion and nutrient loss in Dianchi watershed, China.

Soil erosion and nutrient loss are important environmental and ecological problems in the Dianchi watershed in southwestern China. Woodlands-the primary land type in the Dianchi watershed-play an important ecological role in controlling soil and water loss. In this study, we compared soil erosion and loss of total organic carbon (TOC), total nitrogen (TN), and total phosphorus (TP) in woodlands of different ages, i.

Biochar improves soil quality and wheat yield in saline-alkali soils beyond organic fertilizer in a 3-year field trial.

The objective of this study was to examine the effects of biochar compared to organic fertilizer on soil quality and wheat yield in the saline-alkaline lands. A 3-year field trial was conducted on moderately saline-alkaline land in the Yellow River Delta region (YRD) with six treatments: biochar (B1: 5 t, B2: 10 t, B3: 20 t ha year) and organic fertilizer (OF1: 5 t, OF2: 7.5 t ha year) as well as control (CK).

Coffee ground derived biochar embedded O-NiCoO nanoparticles for efficiently catalyzing a boron‑hydrogen bond break.

The catalytic boron‑hydrogen bond break is usually regarded as an important reaction both in the area of environment treatment and hydrogen energy, attracting increasing attention in the past decades. Due to the limitation of conventional noble metal-based catalyst, cost-effective transition metal-based catalysts with high activity have been recently developed to become the promising candidates. Herein, the coffee ground waste was utilized as the biochar substrate loaded with ultrafine NiCoO nanoparticles.

Removal of sulfadiazine from aqueous solution by in-situ activated biochar derived from cotton shell.

Phosphoric acid is used to in-situ activate biochar pyrolyzed by cotton shells to enhance the adsorption ability of sulfadiazine (SDZ). To confirm the optimum condition, different impregnation ratios and impregnation times were investigated. It was found that the biochar (BC) pyrolyzed under the condition of an impregnation ratio of 2.

Plasma-catalytic degradation of ciprofloxacin in aqueous solution over different MnO nanocrystals in a dielectric barrier discharge system.

The α-MnO, β-MnO and γ-MnO samples were prepared by the hydrothermal method and were used for the degradation of ciprofloxacin (CIP) wastewater in a combined DBD-catalytic process. The physical and chemical properties of the samples were systematically studied by several analytical techniques including BET, XRD, SEM, HRTEM, XPS, and H-TPR. The combination of DBD with α-MnO showed the highest CIP degradation efficiency, and the efficiency could reach 93.

[Effects of Biochar and Organic Fertilizer on Saline-alkali Soil N O Emission in the North China Plain].

Based on the winter wheat-summer maize rotation field experiment, the effects of biochar and organic fertilizer on saline-alkali soil NO emissions in the summer maize season were studied in Binzhou in the Shandong Province to provide a theoretical basis for reducing NO emissions from saline-alkali soil. The experiment includes six treatments with three replications:CK[N:0.2 t·(hm·a), PO:0.